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JavaScript jQuery Basics (2014) Creating a Simple Drawing Application Perform: Part 3

Christopher Lebbano
Christopher Lebbano
15,338 Points
Posted by Christopher Lebbano
Christopher Lebbano
15,338 Points

My #newColor span's background color does not update dynamically like it does it the video.

Instead, it only updates after my mouse-click is released. I am assuming that this line of code here is what's supposed to make this work correctly..

function changeColor() {  
  var r = $("#red").val();
  var g = $("#green").val();
  var b = $("#blue").val();
  $("#newColor").css("background-color","rgb(" + r + "," + g + "," + b + ")");
}

$("input[type=range]").change(changeColor);

Is it just my browser or computer? Or have I done this wrong?

2 Answers

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Christopher,

You might have missed the correction in the Teacher's Notes on the previous video: https://teamtreehouse.com/library/jquery-basics/creating-a-simple-drawing-application/perform-part-2

The change event only goes off when you've released the mouse button on the slider so it's not the right event if you want a real time update of the color. The input event goes off whenever the value of an input changes.

Christopher Lebbano
Christopher Lebbano
15,338 Points
Christopher Lebbano
Christopher Lebbano
15,338 Points

Yup I sure did miss the notes, thank you.